def _create_components(self):
""" Internal method to init the widgets components """
self._node.hide()
# Create the texture where the gui component is rendered inside
self._storage_tex = Image.create_2d("ExposureDisplay", 140, 20, "RGBA8")
self._storage_tex.set_clear_color(Vec4(0.2, 0.6, 1.0, 1.0))
self._storage_tex.clear_image()
self._bg_frame = DirectFrame(
parent=self._node, frameColor=(0.1, 0.1, 0.1, 1.0),
frameSize=(200, 0, -10, -85), pos=(0, 0, 0))
self._display_img = Sprite(
image=self._storage_tex, parent=self._node, w=140, h=20, x=20, y=50)
self._display_txt = Text(
text="Current Exposure".upper(), parent=self._node, x=160, y=40,
size=13, color=Vec3(0.8), align="right")
# Create the shader which generates the visualization texture
self._cshader_node = ComputeNode("ExposureWidget")
self._cshader_node.add_dispatch(140 // 10, 20 // 4, 1)
self._cshader_np = self._node.attach_new_node(self._cshader_node)
# Defer the further loading
Globals.base.taskMgr.doMethodLater(1.0, self._late_init, "ExposureLateInit")
def _late_init(self, task):
""" Gets called after the pipeline was initialized """
self._display_txt = Text(text="40 ms",
parent=self._node,
x=20,
y=25,
size=13,
color=Vec3(1),
may_change=True)
self._display_txt_bottom = Text(text="0 ms",
parent=self._node,
x=20,
y=120,
size=13,
color=Vec3(1),
may_change=True)
# Create the shader which generates the visualization texture
self._cshader_node = ComputeNode("FPSChartUpdateChart")
self._cshader_node.add_dispatch(250 // 10, 120 // 4, 1)
self._cshader_np = self._node.attach_new_node(self._cshader_node)
self._cshader = RPLoader.load_shader(
"/$$rp/shader/fps_chart.compute.glsl")
self._cshader_np.set_shader(self._cshader)
self._cshader_np.set_shader_input("DestTex", self._display_tex)
self._cshader_np.set_shader_input("FPSValues", self._storage_buffer)
self._cshader_np.set_shader_input("index", self._store_index)
self._cshader_np.set_shader_input("maxMs", self._chart_ms_max)
self._update_shader_node = ComputeNode("FPSChartUpdateValues")
self._update_shader_node.add_dispatch(1, 1, 1)
self._update_shader_np = self._node.attach_new_node(
self._update_shader_node)
self._ushader = RPLoader.load_shader(
"/$$rp/shader/fps_chart_update.compute.glsl")
self._update_shader_np.set_shader(self._ushader)
self._update_shader_np.set_shader_input("DestTex",
self._storage_buffer)
self._update_shader_np.set_shader_input("index", self._store_index)
self._update_shader_np.set_shader_input("currentData",
self._current_ftime)
Globals.base.addTask(self._update, "UpdateFPSChart", sort=-50)
return task.done
def enable(self):
if not self.isSupported():
# HDR/auto exposure is implemented using compute
# shaders, which are only supported by more modern
# graphics cards and requires at least OpenGL 4.3.
return
self.sceneTex = Texture('hdrSceneTex')
self.sceneTex.setup2dTexture(self.Size, self.Size, Texture.TFloat, Texture.FRgba32)
self.sceneTex.setWrapU(SamplerState.WMClamp)
self.sceneTex.setWrapV(SamplerState.WMClamp)
self.sceneTex.clearImage()
self.__setupSceneQuad()
# Build luminance histogram bucket ranges.
self.ptaBucketRange = PTALVecBase2f.emptyArray(self.NumBuckets)
for i in xrange(self.NumBuckets):
# Use even distribution
bmin = float(i) / float(self.NumBuckets)
bmax = float(i + 1) / float(self.NumBuckets)
# Use a distribution with slightly more bins in the low range.
if bmin > 0.0:
bmin = math.pow(bmin, 1.5)
if bmax > 0.0:
bmax = math.pow(bmax, 1.5)
self.ptaBucketRange.setElement(i, Vec2(bmin, bmax))
self.histogramTex = Texture('histogram')
self.histogramTex.setup1dTexture(self.NumBuckets, Texture.TInt, Texture.FR32i)
self.histogramTex.setClearColor(Vec4(0))
self.histogramTex.clearImage()
self.histogramCompute = base.computeRoot.attachNewNode(ComputeNode('histogramCompute'))
self.histogramCompute.node().addDispatch(self.Size / 8, self.Size / 8, self.Size / 16)
self.histogramCompute.setShader(Shader.loadCompute(Shader.SLGLSL, "phase_14/models/shaders/build_histogram.compute.glsl"), 1)
self.histogramCompute.setShaderInput("scene_texture", self.sceneTex)
self.histogramCompute.setShaderInput("histogram_texture", self.histogramTex)
self.histogramCompute.setShaderInput("bucketrange", self.ptaBucketRange)
self.histogramCompute.setBin("fixed", 0)
self.exposureTex = Texture('exposure')
self.exposureTex.setup1dTexture(1, Texture.TFloat, Texture.FR16)
self.exposureTex.setClearColor(Vec4(0.0))
self.exposureTex.clearImage()
self.exposureCompute = base.computeRoot.attachNewNode(ComputeNode('exposureCompute'))
self.exposureCompute.node().addDispatch(1, 1, 1)
self.exposureCompute.setShader(Shader.loadCompute(Shader.SLGLSL, "phase_14/models/shaders/calc_luminance.compute.glsl"), 1)
self.exposureCompute.setShaderInput("histogram_texture", self.histogramTex)
self.exposureCompute.setShaderInput("avg_lum_texture", self.exposureTex)
self.exposureCompute.setShaderInput("bucketrange", self.ptaBucketRange)
self.exposureCompute.setShaderInput("exposure_minmax", Vec2(1.0, 2.0))
self.exposureCompute.setShaderInput("adaption_rate_brightdark", Vec2(0.6, 0.6))
self.exposureCompute.setShaderInput("exposure_scale", base.config.GetFloat("hdr-tonemapscale", 1.75))
self.exposureCompute.setShaderInput("config_minAvgLum", base.config.GetFloat("hdr-min-avglum", 3.0))
self.exposureCompute.setShaderInput("config_perctBrightPixels", base.config.GetFloat("hdr-percent-bright-pixels", 2.0))
self.exposureCompute.setShaderInput("config_perctTarget", base.config.GetFloat("hdr-percent-target", 60.0))
self.exposureCompute.setBin("fixed", 1)
base.filters.setExposure(self.exposureTex)
taskMgr.add(self.__update, "hdrUpdate", sort = -10000000)
if base.config.GetBool("hdr-debug-histogram", False):
self.debugTex = Texture('histogramDebugTex')
self.debugTex.setup2dTexture(self.NumBuckets, 1, Texture.TFloat, Texture.FRgba32)
self.debugTex.setMagfilter(SamplerState.FTNearest)
self.debugTex.setClearColor(Vec4(0.3, 0.3, 0.5, 1.0))
self.debugTex.clearImage()
self.debugCompute = base.computeRoot.attachNewNode(ComputeNode('debugHistogramCompute'))
self.debugCompute.node().addDispatch(1, 1, 1)
self.debugCompute.setShader(Shader.loadCompute(Shader.SLGLSL, "phase_14/models/shaders/debug_histogram.compute.glsl"), 1)
self.debugCompute.setShaderInput("histogram_texture", self.histogramTex)
self.debugCompute.setShaderInput("debug_texture", self.debugTex)
self.debugCompute.setBin("fixed", 2)
self.debugImg = OnscreenImage(image = self.debugTex, scale = 0.3, pos = (-0.6, -0.7, -0.7))
